oj.uz

Submission #29476

# Submission time Handle Problem Language Result Execution time Memory
29476 2017-07-19T12:52:47 Z inqr Tropical Garden (IOI11_garden) C++14
100 / 100
 2574 ms 34468 KB 
#include "garden.h"
#include "gardenlib.h"
#include <bits/stdc++.h>
#define pb push_back
#define mp make_pair
#define rt insert
#define st first
#define nd second
using namespace std;
vector < int > ed[150005];
vector < pair < int , int > > r[2][150005];
vector < int > p[2];
int cycle1=-1,cycle2=-1;
void dfs(pair<int,int> vn,int rn,pair<int,int> &orv){
	//printf("vn = %d %d rn=%d orv= %d %d\n",vn.st,vn.nd,rn,orv.st,orv.nd);
	if(vn==orv&&rn!=0)
		if(orv.nd==0){cycle1=rn;return;}
		else {cycle2=rn;return;}
	if(vn.nd==0)
		if(orv.nd==0)p[0][vn.st]=rn;
		else p[1][vn.st]=rn;
	if(vn.nd==0)
		for(int i=0;i<r[0][vn.st].size();i++)
			dfs(r[0][vn.st][i],rn+1,orv);
	else
		for(int i=0;i<r[1][vn.st].size();i++)
			dfs(r[1][vn.st][i],rn+1,orv);
}

void count_routes(int N, int M, int P, int R[][2], int Q, int G[])
{
	for(int i=0;i<M;i++){ed[R[i][0]].pb(R[i][1]);ed[R[i][1]].pb(R[i][0]);}
	for(int i=0;i<2;i++){p[i].resize(150005);fill(p[i].begin(),p[i].end(),-1);}
	for(int i=0;i<N;i++){
		if(ed[ed[i][0]][0]!=i) r[0][ed[i][0]].pb(mp(i,0)); // a 0 dan b 0
		if(ed[ed[i][0]][0]==i) r[1][ed[i][0]].pb(mp(i,0)); // a 0 dan b 1
		if(ed[i].size()>=2){
			if(ed[ed[i][1]][0]!=i) r[0][ed[i][1]].pb(mp(i,1)); // a 1 den b 0
			else if(ed[ed[i][1]][0]==i) r[1][ed[i][1]].pb(mp(i,1)); // a 1 den b 1
		}
		else{
			if(ed[ed[i][0]][0]!=i) r[0][ed[i][0]].pb(mp(i,1)); // a 0 dan b 0
			if(ed[ed[i][0]][0]==i) r[1][ed[i][0]].pb(mp(i,1)); // a 0 dan b 1
		}
	}
	pair<int,int>orv1=mp(P,0),orv2=mp(P,1);
	dfs(orv1,0,orv1);
	dfs(orv2,0,orv2);
	for(int i=0;i<Q;i++){
		int ans=0;
		for(int j=0;j<N;j++){
			//if(p[0][j]==G[i])ans++;
			if(p[0][j]!=-1 and cycle1!=-1 and (G[i]-p[0][j])%cycle1==0 and G[i]-p[0][j]>=0)ans++;
			else if(p[0][j]!=-1 and cycle1==-1 and p[0][j]==G[i])ans++;
			//if(p[1][j]==G[i])ans++;
			if(p[1][j]!=-1 and cycle2!=-1 and (G[i]-p[1][j])%cycle2==0 and G[i]-p[1][j]>=0)ans++;
			else if(p[1][j]!=-1 and cycle2==-1 and p[1][j]==G[i])ans++;
		}
		answer(ans);
	}
}

Compilation message

garden.cpp: In function 'void dfs(std::pair<int, int>, int, std::pair<int, int>&)':
garden.cpp:16:4: warning: suggest explicit braces to avoid ambiguous 'else' [-Wdangling-else]
  if(vn==orv&&rn!=0)
    ^
garden.cpp:19:4: warning: suggest explicit braces to avoid ambiguous 'else' [-Wdangling-else]
  if(vn.nd==0)
    ^
garden.cpp:23:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
   for(int i=0;i<r[0][vn.st].size();i++)
               ~^~~~~~~~~~~~~~~~~~~
garden.cpp:26:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
   for(int i=0;i<r[1][vn.st].size();i++)
               ~^~~~~~~~~~~~~~~~~~~

Subtask #1
49.0 / 49.0

# Verdict Execution time Memory Grader output
1 Correct 14 ms 12252 KB Output is correct
2 Correct 13 ms 12152 KB Output is correct
3 Correct 13 ms 12152 KB Output is correct
4 Correct 13 ms 12152 KB Output is correct
5 Correct 13 ms 12024 KB Output is correct
6 Correct 13 ms 12268 KB Output is correct
7 Correct 13 ms 12024 KB Output is correct
8 Correct 14 ms 12144 KB Output is correct
9 Correct 16 ms 12408 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 14 ms 12252 KB Output is correct
2 Correct 13 ms 12152 KB Output is correct
3 Correct 13 ms 12152 KB Output is correct
4 Correct 13 ms 12152 KB Output is correct
5 Correct 13 ms 12024 KB Output is correct
6 Correct 13 ms 12268 KB Output is correct
7 Correct 13 ms 12024 KB Output is correct
8 Correct 14 ms 12144 KB Output is correct
9 Correct 16 ms 12408 KB Output is correct
10 Correct 13 ms 12132 KB Output is correct
11 Correct 26 ms 14368 KB Output is correct
12 Correct 45 ms 15756 KB Output is correct
13 Correct 71 ms 29216 KB Output is correct
14 Correct 161 ms 23368 KB Output is correct
15 Correct 198 ms 23804 KB Output is correct
16 Correct 151 ms 21156 KB Output is correct
17 Correct 135 ms 20104 KB Output is correct
18 Correct 48 ms 15800 KB Output is correct
19 Correct 159 ms 23728 KB Output is correct
20 Correct 191 ms 23928 KB Output is correct
21 Correct 161 ms 20684 KB Output is correct
22 Correct 139 ms 20080 KB Output is correct
23 Correct 170 ms 24796 KB Output is correct

Subtask #3
31.0 / 31.0

# Verdict Execution time Memory Grader output
1 Correct 14 ms 12252 KB Output is correct
2 Correct 13 ms 12152 KB Output is correct
3 Correct 13 ms 12152 KB Output is correct
4 Correct 13 ms 12152 KB Output is correct
5 Correct 13 ms 12024 KB Output is correct
6 Correct 13 ms 12268 KB Output is correct
7 Correct 13 ms 12024 KB Output is correct
8 Correct 14 ms 12144 KB Output is correct
9 Correct 16 ms 12408 KB Output is correct
10 Correct 13 ms 12132 KB Output is correct
11 Correct 26 ms 14368 KB Output is correct
12 Correct 45 ms 15756 KB Output is correct
13 Correct 71 ms 29216 KB Output is correct
14 Correct 161 ms 23368 KB Output is correct
15 Correct 198 ms 23804 KB Output is correct
16 Correct 151 ms 21156 KB Output is correct
17 Correct 135 ms 20104 KB Output is correct
18 Correct 48 ms 15800 KB Output is correct
19 Correct 159 ms 23728 KB Output is correct
20 Correct 191 ms 23928 KB Output is correct
21 Correct 161 ms 20684 KB Output is correct
22 Correct 139 ms 20080 KB Output is correct
23 Correct 170 ms 24796 KB Output is correct
24 Correct 14 ms 12124 KB Output is correct
25 Correct 103 ms 14328 KB Output is correct
26 Correct 145 ms 15948 KB Output is correct
27 Correct 1502 ms 29192 KB Output is correct
28 Correct 1240 ms 23288 KB Output is correct
29 Correct 1876 ms 23496 KB Output is correct
30 Correct 1063 ms 20680 KB Output is correct
31 Correct 1016 ms 19604 KB Output is correct
32 Correct 161 ms 15380 KB Output is correct
33 Correct 1248 ms 22888 KB Output is correct
34 Correct 1805 ms 23112 KB Output is correct
35 Correct 1049 ms 20180 KB Output is correct
36 Correct 1557 ms 19312 KB Output is correct
37 Correct 888 ms 23952 KB Output is correct
38 Correct 2574 ms 34468 KB Output is correct